Dust of Disappearance
Source: DMG p166
Modifiers: Renders all creatures and objects within a 10‑foot radius invisible for several minutes
Found in a small packet, this powder resembles very fine sand. There is enough of it for one use. When you use an action to throw the dust into the air, you and each creature and object within 10 feet of you become Invisible for 2d4 minutes. The Duration is the same for all subjects, and the dust is consumed when its magic takes Effect. If a creature affected by the dust attacks or casts a spell, the Invisibility ends for that creature.
When you view a magic item while the Detect Magic spell is active, you'll see certain auras based on the schools of magic at work in the item. For a Dust of Disappearance, auras include:
Illusion School of magic and the dust appears as a basic brown with subtle hints of depth
Item type
Consumable, Magical
Rarity
Item Rarity: Uncommon
Weight
0.05 lb
Dimensions
1" X 1" packet
Base Price
Estimated Value: 300 gp